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Satisfaction guaranteed

If you're not completely satisfied after your first class, we'll refund your purchase. more info

If you didn't do the lesson, it's cancelled or you are not completely satisfied within 24 hours passed your first lesson, we'll help you find a new tutor or refund your purchase.

Change the date at any moment

You will be able to reschedule the class if you can't attend

Pay once you've received the lesson

The class will be charged for once the class has finished more info

You will need to enter your payment details in advance. In the case of individual class bookings the amount will be charged for at the time of the class, but if you purchase a pack of classes, the payment must be made upfront.


She's from Spain



over 3 years of experience teaching online classes

  • Biology Elementary sc., Middle sc., High sc. / Sixth form, University
    I have a Veterinary degree and a Master´s degree in Molecular Biology and Biomedicine (Immunology). I´ve been teaching this subject for 3 years. If you need help with Biology, feel free to contact me! IMPORTANT: (I find it sad to have to state the obvious): I help to prepare exams, I DO NOT help with cheating.
  • English Elementary/A1-2, Intermediate/B1-2, Advanced/C1, Proficiency/C2
    English teacher for kids, teenagers and adults.





Master/Postgraduate Máster En Biología Molecular Y Biomedicina Por La Universidad De Cantabria
Degree Licenciada En Veterinaria Por La Universidad Complutense De Madrid


Hello, I´m offering Biology classes. I´m a native speaker in both Spanish and English and I have a Veterinary degree and a Master´s degree in Molecular Biology and Biomedicine (Immunology). I started teaching in 2017 and I love making the class as entertaining and diverse as possible. I teach kids, teenagers and adults. If you need help with Biology, please fell free to contact me! Please note that I live in Spain (GMT +2). IMPORTANT: (I find it sad to have to state the obvious): I help to prepare exams, I DO NOT help with cheating.

Book an online lesson (The calendar displayed shows your local time)

Mariana accepts bookings with at least 24 hours in advance.

hours Monday

About me (pictures, hobbies, extracurricular interests...)

Cocina Pilates Senderismo Lectura y cine


Nagore Fernández-Llanio Comella
Por ahora sólo hemos tenido el primer contacto en una entrevista, no ha sido una clase como tal, y la impresión ha sido muy buena. Muy dispuesta y conocedora de la materia.
Marina es muy profesional, puntual y explica muy bien. Una gran profesora para mejorar el nivel de inglés.
2 reviews
Muy profesional y amable.
The description has also been written in other languages, click here to read them all

Frequently Asked Questions

• Can I cancel a booking?

Yes, you can cancel booking up to 8 hours before the lesson starts, indicating the reason for the cancellation. We will study each case personally to carry out the refund.

• How do I pay for the lesson?

At the time you select a lesson or package of hours, you will make the payment through our virtual payment service. You have two options:
- Debit / Credit
- Paypal
Once the payment is settled, we'll send you an e-mail with the booking confirmation.

• Can I modify a booking?

Yes, something unexpected can always happen, so you can change the time or day of the lesson. You can do it from your personal area in "Scheduled lessons" through the option "Change date".

• How does a lesson at Classgap happen?

The class is done through classgap’s virtual classroom. Classgap was developed specifically for educational purposes, including many useful features such as: digital whiteboard, online text editor, webcam, screen sharing and many more.

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